+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Compound biomimetic structures for efficiency enhancement of Ga₀.₅In₀.₅P/GaAs/Ge triple-junction solar cells



Compound biomimetic structures for efficiency enhancement of Ga₀.₅In₀.₅P/GaAs/Ge triple-junction solar cells



Optics Express 22(Suppl. 2): A295-A300



Biomimetic nanostructures have shown to enhance the optical absorption of Ga₀.₅In₀.₅P/GaAs/Ge triple junction solar cells due to excellent antireflective (AR) properties that, however, are highly dependent on their geometric dimensions. In practice, it is challenging to control fabrication conditions which produce nanostructures in ideal periodic arrangements and with tapered side-wall profiles, leading to sacrificed AR properties and solar cell performance. In this work, we introduce compound biomimetic nanostructures created by depositing a layer of silicon dioxide (SiO₂) on top of titanium dioxide (TiO₂) nanostructures for triple junction solar cells. The device exhibits photogenerated current and power conversion efficiency that are enhanced by ~8.9% and ~6.4%, respectively, after deposition due to their improved antireflection characteristics. We further investigate and verify the optical properties of compound structures via a rigorous coupled wave analysis model. The additional SiO₂ layer not only improves the geometric profile, but also serves as a double-layer dielectric coating. It is concluded that the compound biomimetic nanostructures exhibit superior AR properties that are relatively insensitive to fabrication constraints. Therefore, the compound approach can be widely adopted for versatile optoelectronic devices and applications.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 052269011

Download citation: RISBibTeXText

PMID: 24922238


Related references

Compound biomimetic structures for efficiency enhancement of Ga(0.5)In(0.5)P/GaAs/Ge triple-junction solar cells. Optics Express 22(5): A295-A300, 2014

Recent developments in high-efficiency Ga0.5In0.5P/GaAs/Ge dual- and triple-junction solar cells: steps to next-generation PV cells. Solar Energy Materials and Solar Cells 66(1-4): 453-466, 2001

Efficiency improvement of IIIV GaAs solar cells using biomimetic TiO2 subwavelength structures with wide-angle and broadband antireflection properties. Solar Energy Materials and Solar Cells 127: 43-49, 2014

Efficiency Enhancement of a Single-Junction GaAs Solar Cell with ZnO Nanorod Arrays as an Antireflection Layer. Journal of Nanoscience and Nanotechnology 17(6): 4279-4282, 2017

InGaP/GaAs/Ge triple-junction solar cells with ZnO nanowires. Progress in Photovoltaics: Research and Applications 21(8): 1645-1652, 2013

Efficiency Enhancement InGaP/GaAs Dual-Junction Solar Cell with Subwavelength Antireflection Nanorod Arrays. Journal of Nanoscience and Nanotechnology 11(12): 10729-10732, 2011

Efficiency enhancement InGaP/GaAs dual-junction solar cell with subwavelength antireflection nanorod arrays. Journal of Nanoscience and Nanotechnology 11(12): 10729-10732, 2012

Bottom cell growth aspects for triple junction InGaP/(In)GaAs/Ge solar cells. Crystal Research and Technology 40(10-11): 1043-1047, 2005

Effect of Alpha-Particle Irradiation on InGaP/GaAs/Ge Triple-Junction Solar Cells. Materials 11(6), 2018

Analysis of perimeter recombination in the subcells of GaInP/GaAs/Ge triple-junction solar cells. Progress in Photovoltaics: Research and Applications 23(7): 874-882, 2015

Degradation modeling of InGaP/GaAs/Ge triple-junction solar cells irradiated with various-energy protons. Solar Energy Materials and Solar Cells 93(6-7): 768-773, 2009

Efficiency enhancement in GaAs solar cells using self-assembled microspheres. Optics Express 17(8): 6519-6524, 2009

Wafer bonded four-junction GaInP/GaAs//GaInAsP/GaInAs concentrator solar cells with 44.7% efficiency. Progress in Photovoltaics: Research and Applications 22(3): 277-282, 2014

Achieving graded refractive index by use of ZnO nanorods/TiO2 layer to enhance omnidirectional photovoltaic performances of InGaP/GaAs/Ge triple-junction solar cells. Solar Energy Materials and Solar Cells 136: 17-24, 2015

Optical and electrical characteristics of high-efficiency InGaP/InGaAs/Ge triple-junction solar cell incorporated with InGaAs/GaAs QD layers in the middle cell. Progress in Photovoltaics: Research and Applications 24(4): 551-559, 2016